/*
 * @Description: 200以内的偶数
 * @Author: zzj
 * @Date: 2021-09-01 17:53:57
 * @LastEditors: zzj
 * @LastEditTime: 2021-09-01 18:10:01
 */

//打印200以内的偶数
for(var b=0;b<100;b++){
    c = b *2;
    console.log(c)
}

//打印一个数以内的偶数
const readline = require('readline-sync')
var num = readline.question("请输入一个数字：");
for(var s=0;s<num;s++){
    if(s % 2 ==0){
        console.log(s)
    }
}
